Name:________________________________

Section:_____

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Vocabulary

Word Definition

staticelectricity

electriccurrent

resistance

seriescircuit

parallelcircuit

magnetism

magneticfield

electromagnet

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Lesson1–Howdoesmatterbecomecharged?Page374-3771.Whatcausesathundercloudtomakelightning,andsockstoclinginthedryer?2.Whatarethebuildingblocksofmatter?3.Whatcausesstaticelectricity?4.Whatdomovingchargesgenerate?

5.Whathappenswhenpositiveandnegativechargesonobjectsthatareclosetoeachotherarenotbalanced?6.Givetwoexamplesofstaticelectricity.7.Iftwochargeshaveoppositecharges–onepositiveandonenegative–whatwilltheydo?8.Anelectricforceis_____________________________________________________

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9.Howdoobjectswiththesamechargebehavedifferentlythanobjectswithoppositecharges?10.Whatwouldhappenifanegativelychargedballoonwerehungnexttoanothernegativelychargedballoon?

11.Apositivelychargedobject(repels/attracts)apositivelychargedobjectWhatisanelectricfield?12.Canyouseeanelectricfield?

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Lesson2–Howdoelectricchargesflow?Page378-3811.Mostelectricityisonthego.Anelectricchargeinmotioniscalled______________________2.Whatisaclosedcircuit?3.Whatisanopencircuit?4.Materialsthatbecomechargedmoreeasilyarecalled_________________________5.Listsomeexamplesofconductors6.MaterialsthataremadeofatomsthatDONOTbecomechargedeasilyarecalled___________________7.Listsomeexamplesofinsulators

8.Howdoesaresistorhelpanelectricheaterwork?9.Whathappenstoanelectriccurrentataswitch?

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10.Inaseriescircuit,electricchargecanflow_____________________________11.Anybulbalongthepathofaseriescircuitreceives_______________amountofelectricalenergy.

12.Inthiscircuit,whatwouldhappentotheotherlightbulbsinthecircuitifonebulbburnsout?

13.A_______________________circuithastwoormorepathsfortheelectricchargetofollow.14.Howmanypathsareinaparallelcircuit?15.Whatisthemaindifferencebetweenaseriescircuitandaparallelcircuit?16.Domodernhomesuseelectricitythatisarrangedinseriesorinparallelcircuits?Why?

DrawthecircuitsymbolsSwitch

EnergySource

Resistor

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Lesson3–Whataremagneticfields?Page382-3851.Amagnetis____________________________________________________________________2.________________________istheforcethatactsonmovingelectricchargeandmagneticmaterialsthatarenearamagnet.3.Whatisthestructureofamagnet?

4.Whatarethesimilaritiesanddifferencesbetweenthenorthandsouthpolesofamagnet?5.Explainwhathappenstoamagnet’spolesifamagnetisbrokenintotwoparts.Whatpoleswillseekeachotheronthetwomagnetparts?6.Whereisamagneticfieldthestrongest?

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7.WhataresomewaysthatEarthislikeamagnet?

8.Explainhowacompassworks?

9.Whydoesacompassneedlepointinanorth-southdirection?10.WhereareEarth’smagneticforcesstrongest?

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Lesson4–Howiselectricitytransformedtomagnetism?Page386-3891.Howareelectricityandmagnetismrelated?2.Whatsequenceofeventswilltakeplacewhenacompassislocatednearawireandanelectriccurrentflowsthroughthewire?

3.Whatisanelectromagnet?4.Whatisproducedwhenacoiledwireisspunaroundamagnet?5.Howcanthestrengthofanelectromagnetbeincreased?

6.Howisanelectromagnetdifferentfromamagnet?

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7.Whatarethreewayselectromagnetsareused?8.Inadoorbell,electromagnetshelpconvert___________________________________to

_______________________________________to___________________-_______________________.

9.Wouldadoorbellstillworkduringapoweroutage?Whyorwhynot?10.Inthepicture,labeltheelectromagnet.11.Whyareelectromagnetsusedinsomanyelectronicdevices?

***DIDYOUKNOW...AnMRIusespowerfulmagnetsandradiowavestoconstructpicturesofthebody?

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Lesson5–Howismagnetismtransformedtoelectricity?Page390-3931.Describehowelectricityisgenerated.

2.Whataretwowaystoincreasetheamountofelectriccurrentproducedbyamagnet?3.Howdoesthenumberofcoiledloopsaffectthestrengthofthecurrent?

4.WhatimportantinformationdidMichaelFaradaycontributetoscienceinthe1831?5.WhatwasdifferentaboutFaraday’sdiscoveriesandHenry’sdiscoveries?6.WhatisasignificantdifferencebetweenthedynamothatFaradayinventedandamoderngenerator?7.Wheredomosthomes,schools,andbusinessesgetelectricity?

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8.Describehowageneratorworks.

9.Explaintherolemagnetsplayinhelpinggeneratorscreateelectricity.10.Listtwosourcesofenergythatgeneratorsusetocreateelectricity.11.Whatarethe4R’sofelectricalsafety?

12.Whataresomecommonelectricitemsthatmustbeusedcarefully?13.Whatdoyouthinkwillbethenextimportantdiscoveryorinventionaboutelectricity?

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1.Ifchargedparticlesinanobjectarenotbalanced,theobjectbuildsup________________________________.2.Achargeinmotioniscalleda(n)_________________.3.____________________isthepushingorpullingforcethatexistswhenamagneticmaterialisnear.4.Currentflowsinonlyonedirectionsina(n)______________________________________________.5.Thequalityof__________________opposestheflowofelectriccurrentthroughamaterial.6.BecauseofEarth’s________________________,acompassneedlepointsinanorth-southdirection.

7.Oneadvantageofa(n)___________________overanaturalmagnetisthatitsmagneticfieldcanbeturnedoff.8.A(n)___________________canhandleappliancesthatusedifferentamountsofelectriccurrent.

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FillintheblankApositivelychargedobject____________________anotherpositivelychargedobject.Amagneticfieldisthestrongestat___________________________Amaterialthatconductselectriccurrentpoorlyiscalled_________________________Amaterialthatconductselectriccurrentwelliscalled__________________________Inadoorbell,electromagnetshelpconvert_________________________________to

________________________________to______________________________-_____________.

Whenacoiledwireisspunaroundamagnet_______________________isproduced.

ConstructedResponseWhydomosthomeshaveparallelcircuitsratherthanseriescircuits?Howcanthestrengthofanelectromagnetbeincreased?Whathappenstoamagnet’spolesifamagnetisbrokenintotwoparts?